This animation contains more detail than we need to know, but is a good overview of the process of
glycolysis.
Enzymes in the cytoplasm catalyze several steps in glucose breakdown. Glucose is first
phosphorylated in energy-requiring steps, then split to form two molecules of PGAL. Enzymes remove
H+ and electrons from PGAL to change NAD+ to NADH (which is used later in electron transport).
By substrate-level phosphorylation, four ATPs are produced. The end products of glycolysis are:
two pyruvates,
two ATP (net gain),
and two NADH
for each glucose molecule degraded.
This animation (Audio - Important) describes
glycolysis.
REVIEW: Glycolysis
REVIEW: How many ATP molecules (net yield) are produced per molecule of glucose degraded during
glycolysis?
REVIEW: Glycolysis starts and ends in the _____ .
REVIEW: Which of the following does not form during glycolysis?
a. NADH
b. pyruvate
c. FADH2
d. ATP
